Giteki lookup · Nordic Semiconductor
Is the nRF52840 modules Giteki certified in Japan?
BLE 5 / 802.15.4. The chip behind nice!nano, Seeed XIAO BLE and many wireless keyboard controllers. Certification is held by module makers, not by Nordic.
Yes — 6 certification records match “nRF52840” in the MIC database (data as of 2026-09-15).
Certification holders include: I-SYST inc., K.K Mirai Genomics, Seeed Technology Co., Ltd, Seeed Technology Co., Ltd., Shenzhen Holyiot Tecnology Co.,Ltd..
| Number | Date | Holder | Type name | Kind |
|---|---|---|---|---|
| 210-222830 | 2023-10-31 | I-SYST inc. | BLYST840 [IMM-NRF52840] | Construction Design Certification (工事設計認証) |
| 218-461522 | 2022-03-11 | K.K Mirai Genomics | Holyiot-18010-nRF52840 | Construction Design Certification (工事設計認証) |
| 218-461522 | 2022-03-11 | K.K Mirai Genomics | Holyiot-18010-nRF52840 | Construction Design Certification (工事設計認証) |
| 211-220207 | 2022-04-25 | Seeed Technology Co., Ltd | XIAO-nRF52840 Sense,XIAO-nRF52840 | Construction Design Certification (工事設計認証) |
| 222-257139 | 2025-04-25 | Seeed Technology Co., Ltd. | Seeed Studio XIAO nRF52840 Plus/ Seeed Studio XIAO nRF52840 Sense Plus [C516, C516A, C516M, C516B, C516T] | Construction Design Certification (工事設計認証) |
| 214-123422 | 2022-11-15 | Shenzhen Holyiot Tecnology Co.,Ltd. | Holyiot; Model: HOLYIOT-18010-nRF52840 | Construction Design Certification (工事設計認証) |
What a match means for your product
A record here is a certification held by a specific company for a specific module configuration: the tested antenna, the RF firmware and, for construction design certification (工事設計認証), a production design. Your product inherits it only if you use the module exactly as certified. Change the antenna, tune output power, or reflash RF parameters, and the final product usually needs its own certification.
Even when the certification carries over, the finished product must display the Giteki mark (on the product or electronically in the UI) and, if you sell PSE-marked products directly to Japanese consumers, the Domestic Administrator rule applies since 25 December 2025.
Other modules
Source: Ministry of Internal Affairs and Communications, 技術基準適合証明等を受けた機器の検索 (Web-API), refreshed daily. This page is an informational summary by Torii Japan Compliance, not legal advice; Japanese source records prevail.